Yupo:
I am also looking for information of county and state closures. I’m considering a Arizona to Florida trip. My thoughts are that at any time “something” could happen and “you are where you are” and that’s it! I don’t want to be away from home when that happens, but what am I going to do? If I feel I have to go, I'll just go. Anyway, I found this: a Covid-19 travel restriction state by state, and it has been updated to March 1, 2021 (yesterday!)
I’m assuming these have to do with flights. If I go, I will be driving, and “assuming” that would make it even easier to slip on by. I can call ahead and see if the local hotels have any restrictions. That should also be any indicator of freedom of travel on the interstates.
The web page:
Planning a trip within the United States during the pandemic? Check CNN Travel's state-by-state guide with any remaining restrictions plus links to Covid safety guidance and mandates.
www.cnn.com
FYI: California has for years had a border stop “going in only” they say its for checking fruit, but it's oppressive looking, and has plenty of police, dogs, etc. around. I haven’t gone through it since last May, so I can’t say if they are asking any COVID-19 questions. Also, north of Yuma Arizona (well within the US border) there is a stop, where you will be asked where you are going. Not sure who runs that one, police or military.
I hope this helps, and please pass on anything you may learn.